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How the CVE Works
Apache Struts Extras before version 2 contains an improper output neutralization vulnerability in its logging mechanism when using LookupDispatchAction. Attackers can inject malicious input that gets written to application logs without proper sanitization. This allows log file manipulation, where crafted input can forge fake log entries or disrupt log parsing tools. Since the component is retired, no official patch will be released, leaving systems vulnerable to log poisoning and potential obfuscation of malicious activity.
DailyCVE Form
Platform: Apache Struts Extras
Version: Before 2
Vulnerability: Log injection
Severity: Moderate
Date: Jul 30, 2025
Prediction: No patch expected
What Undercode Say
grep -r "LookupDispatchAction" /var/log/struts/ cat /var/log/struts/actions.log | grep -E "malicious_pattern"
Example vulnerable log entry
log.warn(f"Unsanitized input: {user_controlled_data}")
How Exploit
- Craft HTTP requests with malicious payloads
- Inject fake log lines via input parameters
- Bypass log monitoring systems
Protection from this CVE
- Migrate to supported alternatives
- Implement log sanitization filters
- Restrict untrusted access
Impact
- Log integrity compromise
- Audit evasion
- False log entries
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Sources:
Reported By: github.com
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Undercode
